I've noticed a lot of product refills are more expensive than the orignal
product.

At my local Daiei.

960ml Gum mouthwash with pump dispenser  1160yen

500ml Gum mouthwash refill  760yen.





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"No country hides itself behind the paper screen of cultural elitism like Japan,
which, considering they've bought their entire civilisation from other people's
hand-me-downs, is a bit of a liberty."